1 /*- 2 * BSD LICENSE 3 * 4 * Copyright(c) 2010-2014 Intel Corporation. All rights reserved. 5 * All rights reserved. 6 * 7 * Redistribution and use in source and binary forms, with or without 8 * modification, are permitted provided that the following conditions 9 * are met: 10 * 11 * * Redistributions of source code must retain the above copyright 12 * notice, this list of conditions and the following disclaimer. 13 * * Redistributions in binary form must reproduce the above copyright 14 * notice, this list of conditions and the following disclaimer in 15 * the documentation and/or other materials provided with the 16 * distribution. 17 * * Neither the name of Intel Corporation nor the names of its 18 * contributors may be used to endorse or promote products derived 19 * from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS 22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT 23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR 24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT 25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, 26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT 27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34 35 #include <stdio.h> 36 #include <inttypes.h> 37 #include <signal.h> 38 #include <unistd.h> 39 #include <rte_cycles.h> 40 #include <rte_ethdev.h> 41 #include <rte_byteorder.h> 42 #include <rte_atomic.h> 43 #include <rte_malloc.h> 44 #include "packet_burst_generator.h" 45 #include "test.h" 46 47 #define NB_ETHPORTS_USED (1) 48 #define NB_SOCKETS (2) 49 #define MEMPOOL_CACHE_SIZE 250 50 #define MAX_PKT_BURST (32) 51 #define RTE_TEST_RX_DESC_DEFAULT (128) 52 #define RTE_TEST_TX_DESC_DEFAULT (512) 53 #define RTE_PORT_ALL (~(uint8_t)0x0) 54 55 /* how long test would take at full line rate */ 56 #define RTE_TEST_DURATION (2) 57 58 /* 59 * RX and TX Prefetch, Host, and Write-back threshold values should be 60 * carefully set for optimal performance. Consult the network 61 * controller's datasheet and supporting DPDK documentation for guidance 62 * on how these parameters should be set. 63 */ 64 #define RX_PTHRESH 8 /**< Default values of RX prefetch threshold reg. */ 65 #define RX_HTHRESH 8 /**< Default values of RX host threshold reg. */ 66 #define RX_WTHRESH 0 /**< Default values of RX write-back threshold reg. */ 67 68 /* 69 * These default values are optimized for use with the Intel(R) 82599 10 GbE 70 * Controller and the DPDK ixgbe PMD. Consider using other values for other 71 * network controllers and/or network drivers. 72 */ 73 #define TX_PTHRESH 32 /**< Default values of TX prefetch threshold reg. */ 74 #define TX_HTHRESH 0 /**< Default values of TX host threshold reg. */ 75 #define TX_WTHRESH 0 /**< Default values of TX write-back threshold reg. */ 76 77 #define MAX_TRAFFIC_BURST 2048 78 79 #define NB_MBUF RTE_MAX( \ 80 (unsigned)(nb_ports*nb_rx_queue*nb_rxd + \ 81 nb_ports*nb_lcores*MAX_PKT_BURST + \ 82 nb_ports*nb_tx_queue*nb_txd + \ 83 nb_lcores*MEMPOOL_CACHE_SIZE + \ 84 nb_ports*MAX_TRAFFIC_BURST), \ 85 (unsigned)8192) 86 87 88 static struct rte_mempool *mbufpool[NB_SOCKETS]; 89 /* ethernet addresses of ports */ 90 static struct ether_addr ports_eth_addr[RTE_MAX_ETHPORTS]; 91 92 static struct rte_eth_conf port_conf = { 93 .rxmode = { 94 .mq_mode = ETH_MQ_RX_NONE, 95 .max_rx_pkt_len = ETHER_MAX_LEN, 96 .split_hdr_size = 0, 97 .header_split = 0, /**< Header Split disabled */ 98 .hw_ip_checksum = 0, /**< IP checksum offload enabled */ 99 .hw_vlan_filter = 0, /**< VLAN filtering disabled */ 100 .hw_vlan_strip = 0, /**< VLAN strip enabled. */ 101 .hw_vlan_extend = 0, /**< Extended VLAN disabled. */ 102 .jumbo_frame = 0, /**< Jumbo Frame Support disabled */ 103 .hw_strip_crc = 0, /**< CRC stripped by hardware */ 104 .enable_scatter = 0, /**< scatter rx disabled */ 105 }, 106 .txmode = { 107 .mq_mode = ETH_MQ_TX_NONE, 108 }, 109 .lpbk_mode = 1, /* enable loopback */ 110 }; 111 112 static struct rte_eth_rxconf rx_conf = { 113 .rx_thresh = { 114 .pthresh = RX_PTHRESH, 115 .hthresh = RX_HTHRESH, 116 .wthresh = RX_WTHRESH, 117 }, 118 .rx_free_thresh = 32, 119 }; 120 121 static struct rte_eth_txconf tx_conf = { 122 .tx_thresh = { 123 .pthresh = TX_PTHRESH, 124 .hthresh = TX_HTHRESH, 125 .wthresh = TX_WTHRESH, 126 }, 127 .tx_free_thresh = 32, /* Use PMD default values */ 128 .tx_rs_thresh = 32, /* Use PMD default values */ 129 .txq_flags = (ETH_TXQ_FLAGS_NOMULTSEGS | 130 ETH_TXQ_FLAGS_NOVLANOFFL | 131 ETH_TXQ_FLAGS_NOXSUMSCTP | 132 ETH_TXQ_FLAGS_NOXSUMUDP | 133 ETH_TXQ_FLAGS_NOXSUMTCP) 134 }; 135 136 enum { 137 LCORE_INVALID = 0, 138 LCORE_AVAIL, 139 LCORE_USED, 140 }; 141 142 struct lcore_conf { 143 uint8_t status; 144 uint8_t socketid; 145 uint16_t nb_ports; 146 uint8_t portlist[RTE_MAX_ETHPORTS]; 147 } __rte_cache_aligned; 148 149 struct lcore_conf lcore_conf[RTE_MAX_LCORE]; 150 151 static uint64_t link_mbps; 152 153 enum { 154 SC_CONTINUOUS = 0, 155 SC_BURST_POLL_FIRST, 156 SC_BURST_XMIT_FIRST, 157 }; 158 159 static uint32_t sc_flag; 160 161 /* Check the link status of all ports in up to 3s, and print them finally */ 162 static void 163 check_all_ports_link_status(uint8_t port_num, uint32_t port_mask) 164 { 165 #define CHECK_INTERVAL 100 /* 100ms */ 166 #define MAX_CHECK_TIME 30 /* 3s (30 * 100ms) in total */ 167 uint8_t portid, count, all_ports_up, print_flag = 0; 168 struct rte_eth_link link; 169 170 printf("Checking link statuses...\n"); 171 fflush(stdout); 172 for (count = 0; count <= MAX_CHECK_TIME; count++) { 173 all_ports_up = 1; 174 for (portid = 0; portid < port_num; portid++) { 175 if ((port_mask & (1 << portid)) == 0) 176 continue; 177 memset(&link, 0, sizeof(link)); 178 rte_eth_link_get_nowait(portid, &link); 179 /* print link status if flag set */ 180 if (print_flag == 1) { 181 if (link.link_status) { 182 printf("Port %d Link Up - speed %u " 183 "Mbps - %s\n", (uint8_t)portid, 184 (unsigned)link.link_speed, 185 (link.link_duplex == ETH_LINK_FULL_DUPLEX) ? 186 ("full-duplex") : ("half-duplex\n")); 187 if (link_mbps == 0) 188 link_mbps = link.link_speed; 189 } else 190 printf("Port %d Link Down\n", 191 (uint8_t)portid); 192 continue; 193 } 194 /* clear all_ports_up flag if any link down */ 195 if (link.link_status == ETH_LINK_DOWN) { 196 all_ports_up = 0; 197 break; 198 } 199 } 200 /* after finally printing all link status, get out */ 201 if (print_flag == 1) 202 break; 203 204 if (all_ports_up == 0) { 205 fflush(stdout); 206 rte_delay_ms(CHECK_INTERVAL); 207 } 208 209 /* set the print_flag if all ports up or timeout */ 210 if (all_ports_up == 1 || count == (MAX_CHECK_TIME - 1)) 211 print_flag = 1; 212 } 213 } 214 215 static void 216 print_ethaddr(const char *name, const struct ether_addr *eth_addr) 217 { 218 char buf[ETHER_ADDR_FMT_SIZE]; 219 ether_format_addr(buf, ETHER_ADDR_FMT_SIZE, eth_addr); 220 printf("%s%s", name, buf); 221 } 222 223 static int 224 init_traffic(struct rte_mempool *mp, 225 struct rte_mbuf **pkts_burst, uint32_t burst_size) 226 { 227 struct ether_hdr pkt_eth_hdr; 228 struct ipv4_hdr pkt_ipv4_hdr; 229 struct udp_hdr pkt_udp_hdr; 230 uint32_t pktlen; 231 static uint8_t src_mac[] = { 0x00, 0xFF, 0xAA, 0xFF, 0xAA, 0xFF }; 232 static uint8_t dst_mac[] = { 0x00, 0xAA, 0xFF, 0xAA, 0xFF, 0xAA }; 233 234 235 initialize_eth_header(&pkt_eth_hdr, 236 (struct ether_addr *)src_mac, 237 (struct ether_addr *)dst_mac, ETHER_TYPE_IPv4, 0, 0); 238 239 pktlen = initialize_ipv4_header(&pkt_ipv4_hdr, 240 IPV4_ADDR(10, 0, 0, 1), 241 IPV4_ADDR(10, 0, 0, 2), 26); 242 printf("IPv4 pktlen %u\n", pktlen); 243 244 pktlen = initialize_udp_header(&pkt_udp_hdr, 0, 0, 18); 245 246 printf("UDP pktlen %u\n", pktlen); 247 248 return generate_packet_burst(mp, pkts_burst, &pkt_eth_hdr, 249 0, &pkt_ipv4_hdr, 1, 250 &pkt_udp_hdr, burst_size, 251 PACKET_BURST_GEN_PKT_LEN, 1); 252 } 253 254 static int 255 init_lcores(void) 256 { 257 unsigned lcore_id; 258 259 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 260 lcore_conf[lcore_id].socketid = 261 rte_lcore_to_socket_id(lcore_id); 262 if (rte_lcore_is_enabled(lcore_id) == 0) { 263 lcore_conf[lcore_id].status = LCORE_INVALID; 264 continue; 265 } else 266 lcore_conf[lcore_id].status = LCORE_AVAIL; 267 } 268 return 0; 269 } 270 271 static int 272 init_mbufpool(unsigned nb_mbuf) 273 { 274 int socketid; 275 unsigned lcore_id; 276 char s[64]; 277 278 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 279 if (rte_lcore_is_enabled(lcore_id) == 0) 280 continue; 281 282 socketid = rte_lcore_to_socket_id(lcore_id); 283 if (socketid >= NB_SOCKETS) { 284 rte_exit(EXIT_FAILURE, 285 "Socket %d of lcore %u is out of range %d\n", 286 socketid, lcore_id, NB_SOCKETS); 287 } 288 if (mbufpool[socketid] == NULL) { 289 snprintf(s, sizeof(s), "mbuf_pool_%d", socketid); 290 mbufpool[socketid] = 291 rte_pktmbuf_pool_create(s, nb_mbuf, 292 MEMPOOL_CACHE_SIZE, 0, 293 RTE_MBUF_DEFAULT_BUF_SIZE, socketid); 294 if (mbufpool[socketid] == NULL) 295 rte_exit(EXIT_FAILURE, 296 "Cannot init mbuf pool on socket %d\n", 297 socketid); 298 else 299 printf("Allocated mbuf pool on socket %d\n", 300 socketid); 301 } 302 } 303 return 0; 304 } 305 306 static uint16_t 307 alloc_lcore(uint16_t socketid) 308 { 309 unsigned lcore_id; 310 311 for (lcore_id = 0; lcore_id < RTE_MAX_LCORE; lcore_id++) { 312 if (LCORE_AVAIL != lcore_conf[lcore_id].status || 313 lcore_conf[lcore_id].socketid != socketid || 314 lcore_id == rte_get_master_lcore()) 315 continue; 316 lcore_conf[lcore_id].status = LCORE_USED; 317 lcore_conf[lcore_id].nb_ports = 0; 318 return lcore_id; 319 } 320 321 return (uint16_t)-1; 322 } 323 324 volatile uint64_t stop; 325 uint64_t count; 326 uint64_t drop; 327 uint64_t idle; 328 329 static void 330 reset_count(void) 331 { 332 count = 0; 333 drop = 0; 334 idle = 0; 335 } 336 337 static void 338 stats_display(uint8_t port_id) 339 { 340 struct rte_eth_stats stats; 341 rte_eth_stats_get(port_id, &stats); 342 343 printf(" RX-packets: %-10"PRIu64" RX-missed: %-10"PRIu64" RX-bytes: " 344 "%-"PRIu64"\n", 345 stats.ipackets, stats.imissed, stats.ibytes); 346 printf(" RX-errors: %-10"PRIu64" RX-nombuf: %-10"PRIu64"\n", 347 stats.ierrors, stats.rx_nombuf); 348 printf(" TX-packets: %-10"PRIu64" TX-errors: %-10"PRIu64" TX-bytes: " 349 "%-"PRIu64"\n", 350 stats.opackets, stats.oerrors, stats.obytes); 351 } 352 353 static void 354 signal_handler(int signum) 355 { 356 /* USR1 signal, stop testing */ 357 if (signum == SIGUSR1) { 358 printf("Force Stop!\n"); 359 stop = 1; 360 } 361 362 /* USR2 signal, print stats */ 363 if (signum == SIGUSR2) 364 stats_display(0); 365 } 366 367 struct rte_mbuf **tx_burst; 368 369 uint64_t (*do_measure)(struct lcore_conf *conf, 370 struct rte_mbuf *pkts_burst[], 371 uint64_t total_pkts); 372 373 static uint64_t 374 measure_rxtx(struct lcore_conf *conf, 375 struct rte_mbuf *pkts_burst[], 376 uint64_t total_pkts) 377 { 378 unsigned i, portid, nb_rx, nb_tx; 379 uint64_t prev_tsc, cur_tsc; 380 381 prev_tsc = rte_rdtsc(); 382 383 while (likely(!stop)) { 384 for (i = 0; i < conf->nb_ports; i++) { 385 portid = conf->portlist[i]; 386 nb_rx = rte_eth_rx_burst((uint8_t) portid, 0, 387 pkts_burst, MAX_PKT_BURST); 388 if (unlikely(nb_rx == 0)) { 389 idle++; 390 continue; 391 } 392 393 count += nb_rx; 394 nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx); 395 if (unlikely(nb_tx < nb_rx)) { 396 drop += (nb_rx - nb_tx); 397 do { 398 rte_pktmbuf_free(pkts_burst[nb_tx]); 399 } while (++nb_tx < nb_rx); 400 } 401 } 402 if (unlikely(count >= total_pkts)) 403 break; 404 } 405 406 cur_tsc = rte_rdtsc(); 407 408 return cur_tsc - prev_tsc; 409 } 410 411 static uint64_t 412 measure_rxonly(struct lcore_conf *conf, 413 struct rte_mbuf *pkts_burst[], 414 uint64_t total_pkts) 415 { 416 unsigned i, portid, nb_rx, nb_tx; 417 uint64_t diff_tsc, cur_tsc; 418 419 diff_tsc = 0; 420 while (likely(!stop)) { 421 for (i = 0; i < conf->nb_ports; i++) { 422 portid = conf->portlist[i]; 423 424 cur_tsc = rte_rdtsc(); 425 nb_rx = rte_eth_rx_burst((uint8_t) portid, 0, 426 pkts_burst, MAX_PKT_BURST); 427 if (unlikely(nb_rx == 0)) { 428 idle++; 429 continue; 430 } 431 diff_tsc += rte_rdtsc() - cur_tsc; 432 433 count += nb_rx; 434 nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx); 435 if (unlikely(nb_tx < nb_rx)) { 436 drop += (nb_rx - nb_tx); 437 do { 438 rte_pktmbuf_free(pkts_burst[nb_tx]); 439 } while (++nb_tx < nb_rx); 440 } 441 } 442 if (unlikely(count >= total_pkts)) 443 break; 444 } 445 446 return diff_tsc; 447 } 448 449 static uint64_t 450 measure_txonly(struct lcore_conf *conf, 451 struct rte_mbuf *pkts_burst[], 452 uint64_t total_pkts) 453 { 454 unsigned i, portid, nb_rx, nb_tx; 455 uint64_t diff_tsc, cur_tsc; 456 457 printf("do tx measure\n"); 458 diff_tsc = 0; 459 while (likely(!stop)) { 460 for (i = 0; i < conf->nb_ports; i++) { 461 portid = conf->portlist[i]; 462 nb_rx = rte_eth_rx_burst((uint8_t) portid, 0, 463 pkts_burst, MAX_PKT_BURST); 464 if (unlikely(nb_rx == 0)) { 465 idle++; 466 continue; 467 } 468 469 count += nb_rx; 470 471 cur_tsc = rte_rdtsc(); 472 nb_tx = rte_eth_tx_burst(portid, 0, pkts_burst, nb_rx); 473 if (unlikely(nb_tx < nb_rx)) { 474 drop += (nb_rx - nb_tx); 475 do { 476 rte_pktmbuf_free(pkts_burst[nb_tx]); 477 } while (++nb_tx < nb_rx); 478 } 479 diff_tsc += rte_rdtsc() - cur_tsc; 480 } 481 if (unlikely(count >= total_pkts)) 482 break; 483 } 484 485 return diff_tsc; 486 } 487 488 /* main processing loop */ 489 static int 490 main_loop(__rte_unused void *args) 491 { 492 #define PACKET_SIZE 64 493 #define FRAME_GAP 12 494 #define MAC_PREAMBLE 8 495 struct rte_mbuf *pkts_burst[MAX_PKT_BURST]; 496 unsigned lcore_id; 497 unsigned i, portid, nb_rx = 0, nb_tx = 0; 498 struct lcore_conf *conf; 499 int pkt_per_port; 500 uint64_t diff_tsc; 501 uint64_t packets_per_second, total_packets; 502 503 lcore_id = rte_lcore_id(); 504 conf = &lcore_conf[lcore_id]; 505 if (conf->status != LCORE_USED) 506 return 0; 507 508 pkt_per_port = MAX_TRAFFIC_BURST; 509 510 int idx = 0; 511 for (i = 0; i < conf->nb_ports; i++) { 512 int num = pkt_per_port; 513 portid = conf->portlist[i]; 514 printf("inject %d packet to port %d\n", num, portid); 515 while (num) { 516 nb_tx = RTE_MIN(MAX_PKT_BURST, num); 517 nb_tx = rte_eth_tx_burst(portid, 0, 518 &tx_burst[idx], nb_tx); 519 num -= nb_tx; 520 idx += nb_tx; 521 } 522 } 523 printf("Total packets inject to prime ports = %u\n", idx); 524 525 packets_per_second = (link_mbps * 1000 * 1000) / 526 ((PACKET_SIZE + FRAME_GAP + MAC_PREAMBLE) * CHAR_BIT); 527 printf("Each port will do %"PRIu64" packets per second\n", 528 packets_per_second); 529 530 total_packets = RTE_TEST_DURATION * conf->nb_ports * packets_per_second; 531 printf("Test will stop after at least %"PRIu64" packets received\n", 532 + total_packets); 533 534 diff_tsc = do_measure(conf, pkts_burst, total_packets); 535 536 for (i = 0; i < conf->nb_ports; i++) { 537 portid = conf->portlist[i]; 538 int nb_free = pkt_per_port; 539 do { /* dry out */ 540 nb_rx = rte_eth_rx_burst((uint8_t) portid, 0, 541 pkts_burst, MAX_PKT_BURST); 542 nb_tx = 0; 543 while (nb_tx < nb_rx) 544 rte_pktmbuf_free(pkts_burst[nb_tx++]); 545 nb_free -= nb_rx; 546 } while (nb_free != 0); 547 printf("free %d mbuf left in port %u\n", pkt_per_port, portid); 548 } 549 550 if (count == 0) 551 return -1; 552 553 printf("%"PRIu64" packet, %"PRIu64" drop, %"PRIu64" idle\n", 554 count, drop, idle); 555 printf("Result: %"PRIu64" cycles per packet\n", diff_tsc / count); 556 557 return 0; 558 } 559 560 rte_atomic64_t start; 561 562 static inline int 563 poll_burst(void *args) 564 { 565 #define MAX_IDLE (10000) 566 unsigned lcore_id; 567 struct rte_mbuf **pkts_burst; 568 uint64_t diff_tsc, cur_tsc; 569 uint16_t next[RTE_MAX_ETHPORTS]; 570 struct lcore_conf *conf; 571 uint32_t pkt_per_port = *((uint32_t *)args); 572 unsigned i, portid, nb_rx = 0; 573 uint64_t total; 574 uint64_t timeout = MAX_IDLE; 575 576 lcore_id = rte_lcore_id(); 577 conf = &lcore_conf[lcore_id]; 578 if (conf->status != LCORE_USED) 579 return 0; 580 581 total = pkt_per_port * conf->nb_ports; 582 printf("start to receive total expect %"PRIu64"\n", total); 583 584 pkts_burst = (struct rte_mbuf **) 585 rte_calloc_socket("poll_burst", 586 total, sizeof(void *), 587 RTE_CACHE_LINE_SIZE, conf->socketid); 588 if (!pkts_burst) 589 return -1; 590 591 for (i = 0; i < conf->nb_ports; i++) { 592 portid = conf->portlist[i]; 593 next[portid] = i * pkt_per_port; 594 } 595 596 while (!rte_atomic64_read(&start)) 597 ; 598 599 cur_tsc = rte_rdtsc(); 600 while (total) { 601 for (i = 0; i < conf->nb_ports; i++) { 602 portid = conf->portlist[i]; 603 nb_rx = rte_eth_rx_burst((uint8_t) portid, 0, 604 &pkts_burst[next[portid]], 605 MAX_PKT_BURST); 606 if (unlikely(nb_rx == 0)) { 607 timeout--; 608 if (unlikely(timeout == 0)) 609 goto timeout; 610 continue; 611 } 612 next[portid] += nb_rx; 613 total -= nb_rx; 614 } 615 } 616 timeout: 617 diff_tsc = rte_rdtsc() - cur_tsc; 618 619 printf("%"PRIu64" packets lost, IDLE %"PRIu64" times\n", 620 total, MAX_IDLE - timeout); 621 622 /* clean up */ 623 total = pkt_per_port * conf->nb_ports - total; 624 for (i = 0; i < total; i++) 625 rte_pktmbuf_free(pkts_burst[i]); 626 627 rte_free(pkts_burst); 628 629 if (total > 0) 630 return diff_tsc / total; 631 else 632 return -1; 633 } 634 635 static int 636 exec_burst(uint32_t flags, int lcore) 637 { 638 unsigned i, portid, nb_tx = 0; 639 struct lcore_conf *conf; 640 uint32_t pkt_per_port; 641 int num, idx = 0; 642 int diff_tsc; 643 644 conf = &lcore_conf[lcore]; 645 646 pkt_per_port = MAX_TRAFFIC_BURST; 647 num = pkt_per_port; 648 649 rte_atomic64_init(&start); 650 651 /* start polling thread, but not actually poll yet */ 652 rte_eal_remote_launch(poll_burst, 653 (void *)&pkt_per_port, lcore); 654 655 /* Only when polling first */ 656 if (flags == SC_BURST_POLL_FIRST) 657 rte_atomic64_set(&start, 1); 658 659 /* start xmit */ 660 while (num) { 661 nb_tx = RTE_MIN(MAX_PKT_BURST, num); 662 for (i = 0; i < conf->nb_ports; i++) { 663 portid = conf->portlist[i]; 664 rte_eth_tx_burst(portid, 0, 665 &tx_burst[idx], nb_tx); 666 idx += nb_tx; 667 } 668 num -= nb_tx; 669 } 670 671 sleep(5); 672 673 /* only when polling second */ 674 if (flags == SC_BURST_XMIT_FIRST) 675 rte_atomic64_set(&start, 1); 676 677 /* wait for polling finished */ 678 diff_tsc = rte_eal_wait_lcore(lcore); 679 if (diff_tsc < 0) { 680 printf("exec_burst: Failed to measure cycles per packet\n"); 681 return -1; 682 } 683 684 printf("Result: %d cycles per packet\n", diff_tsc); 685 686 return 0; 687 } 688 689 static int 690 test_pmd_perf(void) 691 { 692 uint16_t nb_ports, num, nb_lcores, slave_id = (uint16_t)-1; 693 uint16_t nb_rxd = MAX_TRAFFIC_BURST; 694 uint16_t nb_txd = MAX_TRAFFIC_BURST; 695 uint16_t portid; 696 uint16_t nb_rx_queue = 1, nb_tx_queue = 1; 697 int socketid = -1; 698 int ret; 699 700 printf("Start PMD RXTX cycles cost test.\n"); 701 702 signal(SIGUSR1, signal_handler); 703 signal(SIGUSR2, signal_handler); 704 705 nb_ports = rte_eth_dev_count(); 706 if (nb_ports < NB_ETHPORTS_USED) { 707 printf("At least %u port(s) used for perf. test\n", 708 NB_ETHPORTS_USED); 709 return -1; 710 } 711 712 nb_lcores = rte_lcore_count(); 713 714 memset(lcore_conf, 0, sizeof(lcore_conf)); 715 init_lcores(); 716 717 init_mbufpool(NB_MBUF); 718 719 if (sc_flag == SC_CONTINUOUS) { 720 nb_rxd = RTE_TEST_RX_DESC_DEFAULT; 721 nb_txd = RTE_TEST_TX_DESC_DEFAULT; 722 } 723 printf("CONFIG RXD=%d TXD=%d\n", nb_rxd, nb_txd); 724 725 reset_count(); 726 num = 0; 727 for (portid = 0; portid < nb_ports; portid++) { 728 if (socketid == -1) { 729 socketid = rte_eth_dev_socket_id(portid); 730 slave_id = alloc_lcore(socketid); 731 if (slave_id == (uint16_t)-1) { 732 printf("No avail lcore to run test\n"); 733 return -1; 734 } 735 printf("Performance test runs on lcore %u socket %u\n", 736 slave_id, socketid); 737 } 738 739 if (socketid != rte_eth_dev_socket_id(portid)) { 740 printf("Skip port %d\n", portid); 741 continue; 742 } 743 744 /* port configure */ 745 ret = rte_eth_dev_configure(portid, nb_rx_queue, 746 nb_tx_queue, &port_conf); 747 if (ret < 0) 748 rte_exit(EXIT_FAILURE, 749 "Cannot configure device: err=%d, port=%d\n", 750 ret, portid); 751 752 rte_eth_macaddr_get(portid, &ports_eth_addr[portid]); 753 printf("Port %u ", portid); 754 print_ethaddr("Address:", &ports_eth_addr[portid]); 755 printf("\n"); 756 757 /* tx queue setup */ 758 ret = rte_eth_tx_queue_setup(portid, 0, nb_txd, 759 socketid, &tx_conf); 760 if (ret < 0) 761 rte_exit(EXIT_FAILURE, 762 "rte_eth_tx_queue_setup: err=%d, " 763 "port=%d\n", ret, portid); 764 765 /* rx queue steup */ 766 ret = rte_eth_rx_queue_setup(portid, 0, nb_rxd, 767 socketid, &rx_conf, 768 mbufpool[socketid]); 769 if (ret < 0) 770 rte_exit(EXIT_FAILURE, "rte_eth_rx_queue_setup: err=%d," 771 "port=%d\n", ret, portid); 772 773 /* Start device */ 774 stop = 0; 775 ret = rte_eth_dev_start(portid); 776 if (ret < 0) 777 rte_exit(EXIT_FAILURE, 778 "rte_eth_dev_start: err=%d, port=%d\n", 779 ret, portid); 780 781 /* always eanble promiscuous */ 782 rte_eth_promiscuous_enable(portid); 783 784 lcore_conf[slave_id].portlist[num++] = portid; 785 lcore_conf[slave_id].nb_ports++; 786 } 787 check_all_ports_link_status(nb_ports, RTE_PORT_ALL); 788 789 if (tx_burst == NULL) { 790 tx_burst = (struct rte_mbuf **) 791 rte_calloc_socket("tx_buff", 792 MAX_TRAFFIC_BURST * nb_ports, 793 sizeof(void *), 794 RTE_CACHE_LINE_SIZE, socketid); 795 if (!tx_burst) 796 return -1; 797 } 798 799 init_traffic(mbufpool[socketid], 800 tx_burst, MAX_TRAFFIC_BURST * nb_ports); 801 802 printf("Generate %d packets @socket %d\n", 803 MAX_TRAFFIC_BURST * nb_ports, socketid); 804 805 if (sc_flag == SC_CONTINUOUS) { 806 /* do both rxtx by default */ 807 if (NULL == do_measure) 808 do_measure = measure_rxtx; 809 810 rte_eal_remote_launch(main_loop, NULL, slave_id); 811 812 if (rte_eal_wait_lcore(slave_id) < 0) 813 return -1; 814 } else if (sc_flag == SC_BURST_POLL_FIRST || 815 sc_flag == SC_BURST_XMIT_FIRST) 816 if (exec_burst(sc_flag, slave_id) < 0) 817 return -1; 818 819 /* port tear down */ 820 for (portid = 0; portid < nb_ports; portid++) { 821 if (socketid != rte_eth_dev_socket_id(portid)) 822 continue; 823 824 rte_eth_dev_stop(portid); 825 } 826 827 return 0; 828 } 829 830 int 831 test_set_rxtx_conf(cmdline_fixed_string_t mode) 832 { 833 printf("mode switch to %s\n", mode); 834 835 if (!strcmp(mode, "vector")) { 836 /* vector rx, tx */ 837 tx_conf.txq_flags = 0xf01; 838 tx_conf.tx_rs_thresh = 32; 839 tx_conf.tx_free_thresh = 32; 840 port_conf.rxmode.hw_ip_checksum = 0; 841 port_conf.rxmode.enable_scatter = 0; 842 return 0; 843 } else if (!strcmp(mode, "scalar")) { 844 /* bulk alloc rx, full-featured tx */ 845 tx_conf.txq_flags = 0; 846 tx_conf.tx_rs_thresh = 32; 847 tx_conf.tx_free_thresh = 32; 848 port_conf.rxmode.hw_ip_checksum = 1; 849 port_conf.rxmode.enable_scatter = 0; 850 return 0; 851 } else if (!strcmp(mode, "hybrid")) { 852 /* bulk alloc rx, vector tx 853 * when vec macro not define, 854 * using the same rx/tx as scalar 855 */ 856 tx_conf.txq_flags = 0xf01; 857 tx_conf.tx_rs_thresh = 32; 858 tx_conf.tx_free_thresh = 32; 859 port_conf.rxmode.hw_ip_checksum = 1; 860 port_conf.rxmode.enable_scatter = 0; 861 return 0; 862 } else if (!strcmp(mode, "full")) { 863 /* full feature rx,tx pair */ 864 tx_conf.txq_flags = 0x0; /* must condition */ 865 tx_conf.tx_rs_thresh = 32; 866 tx_conf.tx_free_thresh = 32; 867 port_conf.rxmode.hw_ip_checksum = 0; 868 port_conf.rxmode.enable_scatter = 1; /* must condition */ 869 return 0; 870 } 871 872 return -1; 873 } 874 875 int 876 test_set_rxtx_anchor(cmdline_fixed_string_t type) 877 { 878 printf("type switch to %s\n", type); 879 880 if (!strcmp(type, "rxtx")) { 881 do_measure = measure_rxtx; 882 return 0; 883 } else if (!strcmp(type, "rxonly")) { 884 do_measure = measure_rxonly; 885 return 0; 886 } else if (!strcmp(type, "txonly")) { 887 do_measure = measure_txonly; 888 return 0; 889 } 890 891 return -1; 892 } 893 894 int 895 test_set_rxtx_sc(cmdline_fixed_string_t type) 896 { 897 printf("stream control switch to %s\n", type); 898 899 if (!strcmp(type, "continuous")) { 900 sc_flag = SC_CONTINUOUS; 901 return 0; 902 } else if (!strcmp(type, "poll_before_xmit")) { 903 sc_flag = SC_BURST_POLL_FIRST; 904 return 0; 905 } else if (!strcmp(type, "poll_after_xmit")) { 906 sc_flag = SC_BURST_XMIT_FIRST; 907 return 0; 908 } 909 910 return -1; 911 } 912 913 REGISTER_TEST_COMMAND(pmd_perf_autotest, test_pmd_perf); 914